Unanswered question

I'm trying to use NeoLoad to run some tests against my website that has spnego SSO implemented. I've changed the NeoLoad settings to use Kerberos authentication and used the Record functionality to generate a basic user path of opening the website. The problem occurs when I use the Check a User Path function which reports an Unauthorised response. Unfortunately, everything I try still results in an Unauthorised response from the website. Any help would be much appreciated